year is 91..and the civic sir

 

There isn't a code 23 for the 1991 Civic SI (D16A6)

 

i never said i had a d16..you asked me what year is the motor and i said 91..and what car did it originally come out of..why would it matter?!...all you really need is what engine..or ecu it has...i have a b16a..came out of a 91 civic sir..jdm..